203445675

素因数分解:

$3^7\times 5^2\times {\mathrm{61}}^2$

素因数の和:153

約数の個数: 72

約数和(自身を含む): 384655440

約数和(自身を除く): 181209765

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 61, 75, 81, 135, 183, 225, 243, 305, 405, 549, 675, 729, 915, 1215, 1525, 1647, 2025, 2187, 2745, 3645, 3721, 4575, 4941, 6075, 8235, 10935, 11163, 13725, 14823, 18225, 18605, 24705, 33489, 41175, 44469, 54675, 55815, 74115, 93025, 100467, 123525, 133407, 167445, 222345, 279075, 301401, 370575, 502335, 667035, 837225, 904203, 1111725, 1507005, 2511675, 2712609, 3335175, 4521015, 7535025, 8137827, 13563045, 22605075, 40689135, 67815225, 203445675]

約数ペア:

[(1, 203445675), (3, 67815225), (5, 40689135), (9, 22605075), (15, 13563045), (25, 8137827), (27, 7535025), (45, 4521015), (61, 3335175), (75, 2712609), (81, 2511675), (135, 1507005), (183, 1111725), (225, 904203), (243, 837225), (305, 667035), (405, 502335), (549, 370575), (675, 301401), (729, 279075), (915, 222345), (1215, 167445), (1525, 133407), (1647, 123525), (2025, 100467), (2187, 93025), (2745, 74115), (3645, 55815), (3721, 54675), (4575, 44469), (4941, 41175), (6075, 33489), (8235, 24705), (10935, 18605), (11163, 18225), (13725, 14823)]